textops: fixed naming convention

- The original function is named in_ rather than is_, updating to the same standard You can view, comment on, or merge this pull request online at:

https://github.com/kamailio/kamailio/pull/1332

-- Commit Summary --

* Update textops.c

-- File Changes --

M src/modules/textops/textops.c (2)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/1332.patch https://github.com/kamailio/kamailio/pull/1332.diff